Hello, I'm trying to figure out what gases I might have been exposed to when I burned some butter on a pan in my apartment with the windows closed. I'm not seeking medical advice, but I am trying to understand the event.
Monday, 5 days ago, I left some butter in a pan on my electric stove at low heat (2/10, maybe 3/10) which I thought I'd turned off. When I smelled something acrid, I thought it was coming from outside and closed the window, while I was on a conference call. About half an hour later, as it was becoming a bit difficult to speak, I walked over and noticed the blackened pan, removed it, and ventilated the apartment. Airflow here is really good and there was wind that day. There was never any visible smoke, and the pan was not glowing hot. My cognition felt a little off for a while but nothing serious.
Two days in I was feeling fatigue, dry throat and minor shortness of breath, so went to urgent care. My blood O2 was normal, and they said symptoms of smoke exposure should resolve within a week.
Four days in, I was feeling short of breath more often, and very fatigued, and I went to the ER, where again my O2 was normal, lung x-ray normal, everything normal, and they sent me home. Even now, my appetite is shot and I'm just dragging through the day.
So now the chemistry question for the forum: If the butter never caught fire, what did it do? It's almost pure fat. As I search, the combustion products of lipids seem to be water and CO2, and surely some other nasty stuff. CO is absent or trace. But there is no combustion without fire or smoke, right?
My next suspicion was gasification. Gasification of lipids supposedly occurs at nearly 1000c, way hotter than a stovetop on low could ever get. Before that happens, the stainless steel pan should have been glowing. It wasn't, nor was the handle hot to the touch. However, gasification produces CO, which is my real fear.
So I'm stumped, and not sure how to understand what happened. I would like to have a more informed story next time I see a doctor since they can't find anything wrong.
BTW - since the smoke detector is conspicuously absent from this story - I had pulled the battery after a false alarm in the middle of the night. Not replacing the alarm in its entirety was a stupid move, but I know that now. Turns out it's at least 30 years old.